Technical Bulletin 1 49, U. S, Dept. of Agriculture 



PLATE 2 



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A.— Brood comb with brood dead of Aspergillus mycosis produced experimentally by inoculation 



with a culture of Aspergillus flavus on a brood comb. 

 B.— Brood comb with brood and young bees from a colony inoculated experimentally with A. flatms, 



taken after the older bees had deserted the hive before succumbing to Aspergillus mycosis. 



